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Predation by Gray Catbird on Brown Thrasher Eggs
March 2004 Notes 101 PREDATION BY GRAY CATBIRD ON BROWN THRASHER EGGS JAMES W. RIVERS* AND BRETT K. SANDERCOCK Kansas Cooperative Fish and Wildlife Research Unit, Division of Biology, Kansas State University, Manhattan, KS 66506 (JWR) Division of Biology, Kansas State University, Manhattan, KS 66506 (BKS) Present address of JWR: Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106 *Correspondent: [email protected] ABSTRACT The gray catbird (Dumetella carolinensis) has been documented visiting and breaking the eggs of arti®cial nests, but the implications of such observations are unclear because there is little cost in depredating an undefended nest. During the summer of 2001 at Konza Prairie Bio- logical Station, Kansas, we videotaped a gray catbird that broke and consumed at least 1 egg in a brown thrasher (Toxostoma rufum) nest. Our observation was consistent with egg predation because the catbird consumed the contents of the damaged egg after breaking it. The large difference in body mass suggests that a catbird (37 g) destroying eggs in a thrasher (69 g) nest might risk injury if caught in the act of predation and might explain why egg predation by catbirds has been poorly documented. Our observation indicated that the catbird should be considered as an egg predator of natural nests and that single-egg predation of songbird nests should not be attributed to egg removal by female brown-headed cowbirds (Molothrus ater) without additional evidence. RESUMEN El paÂjaro gato gris (Dumetella carolinensis) ha sido documentado visitando y rompien- do los huevos de nidos arti®ciales, pero las implicaciones de dichas observaciones no son claras porque hay poco costo por depredar un nido sin defensa. -
Fitness Costs and Benefits of Egg Ejection by Gray Catbirds
FITNESS COSTS AND BENEFITS OF EGG EJECTION BY GRAY CATBIRDS BY JANICE C. LORENZANA Ajhesis presented to the University of Manitoba in fulfillment of the thesis requirements for the degree of Master of Science in the Department of Zoology Winnipeg, Manitoba Janice C. Lorenzana (C) April 1999 National Library Bibfiot hèque nationale 1*1 of Canada du Canada Acquisitions and Acquisitions et Bibliographie Services services bibliographiques 395 Wellington Street 395,rue Wellington Ottawa ON K 1A ON4 Onawa ON KIA ON4 Canada Canada Your ble Vorre derence Our fi& Narre fetefmce The author has granted a non- L'auteur a accordé une licence non exclusive licence allowing the exclusive permettant à la National Library of Canada to Bibliothèque nationale du Canada de reproduce, loan, distribute or sel1 reproduire, prêter, distribuer ou copies of this thesis in microforni. vendre des copies de cette thèse sous paper or electronic formats. la forme de microfiche/film, de reproduction sur papier ou sur format électronique. The author retains ownership of the L'auteur conserve la propriété du copyright in this thesis. Neither the droit d'auteur qui protège cette thèse. thesis nor substantial extracts fi-orn it Ni la thèse ni des extraits substantiels may be printed or othenvise de celle-ci ne doivent être imprimés reproduced without the author's ou autrement reproduits sans son permission. autorisation. Canada THE UNIVERSITY OF MANITOBA FACULTY OF GRADUATE STZTDIES ***** COPYRIGEIT PERMISSION PAGE Fitness Costs and Benefits of Egg Ejection by Gray Catbirds BY Janice C. Lorenzana A Thesis/Practicurn submitted to the Faculty of Graduate Studies of The University of Manitoba in partial Mfiilment of the requirements of the degree of MASTER OF SCIENCE Permission has been granted to the Library of The University of Manitoba to lend QB sell copies of this thesis/practicum, to the National Library of Canada to microfilm this thesis and to lend or seli copies of the film, and to Dissertations Abstracts International to publish an abstract of this thesis/practicum. -
State-Owned Wildlife Management. Areas in New England
United States Department of State-Owned Agriculture I Forest Service Wildlife Management. Northeastern Forest Experiment Station Areas in New England Research Paper NE-623 Ronald J. Glass Abstract 1 State-owned wildlife management areas play an important role in enhancing 1 wildlife populations and providing opportunities for wildlife-related recreational activities. In the six New England States there are 271 wildlife management areas with a total area exceeding 268,000 acres. A variety of wildlife species benefit from habitat improvement activities on these areas. The Author RONALD J. GLASS is a research economist with the Northeastern Forest Experiment Station, Burlington, Vermont. He also has worked with the Economic Research Service of the US. Department of Agriculture and the Alaska Department of Fish and Game. He received MS. and Ph.D. degrees in economics from the University of Minnesota and the State University of New York at Syracuse. Manuscript received for publication 13 February 1989 1 I Northeastern Forest Experiment Station 370 Reed Road, Broomall, PA 19008 I I July 1989 Introduction Further, human population growth and increased use of rural areas for residential, recreational, and commercial With massive changes in land use and ownership, the role development have resulted in additional losses of wildlife of public lands in providing wildlife habitat and related habitat and made much of the remaining habitat human-use opportunities is becoming more important. One unavailable to a large segment of the general public. Other form of public land ownership that has received only limited private lands that had been open to public use are being recognition is the state-owned wildlife management area posted against trespass, severely restricting public use. -
Guidance for Conserving Oregon's Native Turtles Including Best Management Practices
GUIDANCE FOR CONSERVING OREGON’S NATIVE TURTLES INCLUDING BEST MANAGEMENT PRACTICES the OREGON CONSERVATION STRATEGY the intent of this document is to facilitate better protection and conservation of oregon’s native turtles and their habitats. This document includes recommended Best Management Practices (BMPs) for protecting and conserving Oregon’s two native turtle species, the western painted turtle and the western pond turtle. While there are opportunities for all Oregonians to become more knowledgeable about and participate in turtle conservation efforts, this document is intended primarily for use by natural resource and land managers, land use planners, and project managers. The document has been peer-reviewed and the BMPs are supported by scientifically sound information. The BMPs are intended to be practical and cost-effective so that they can be readily used. Adherence to these BMPs does not necessarily constitute compliance with all applicable federal, state, or local laws. Acknowledgements This document was produced by the Oregon Department of Fish and Wildlife (ODFW) with significant financial and design contributions from The Port of Portland. Input and technical review was provided by the Oregon Native Turtle Working Group which is comprised of representatives from a variety of natural resource agencies, organizations, and institutions. This document arose out of a recommendation from the 2009 Native Turtle Conservation Forum, organized by the Oregon Native Turtle Working Group and hosted by the Oregon Zoo. More information -
Factors Affecting Feeding and Brooding of Brown Thrasher Nestlings.-The Nest- Ling Period Is a Particularly Stressful Time in the Lives of Birds
GENERAL NOTES 297 wind. An adult California Gull (Larus c&ornicus) was flying east 5 m above the water, 50 m from the shore, close to 150 Barn Swallows (Hirundo rustica) that were foraging low over the water. One swallow, heading west, passed 1 m below the gull, which dropped suddenly and caught the swallow with its bill, glided for a few meters and settled on the water. The gull proceeded to manipulate the swallow in its bill for 30 set before swallowing the still moving bird head first. The gull sat on the water for 20 min, then continued its flight to the east. Most reports of adult birds being taken by gulls have occurred while the prey were on land or water, e.g., Manx Shearwater (Puffi nus &&us) and Common Puffins (Fratercula arctica) in nesting colonies as they go to and from their burrows (Harris 1965), sick or injured birds up to the size of geese (Witherby 1948), Rock Doves (Columba &via) (Jyrkkanen 1975) and Eurasian Starlings (Sturnus vulgaris) (Drost 1958) at grain piles and ground-dwelling birds which associate with gulls (e.g., Witherby 1948). Gull predation of adult birds on water is much rarer but does occur (Hafft, Condor 73:253, 1971). Attacks and capture of avian prey on the wing has rarely been reported and generally occurs over sea on migration (Drost 1958). Bannerman (1962) reports Herring Gulls (L. argentatus) capturing and eating Redwings (Turdus musicus) and Eurasian Blackbirds (2.’ merula) as they migrate over water by knocking the weary birds into the water. -
WATERFOWL ___Cackling Goose
WATERFOWL ____ Least Sandpiper FALCONS BUSHTITS ____ Pine Grosbeak ____ Cackling Goose ____ Wilson's Snipe ____ American Kestrel ____ Bushtit ____ House Finch ____ Canada Goose ____ Spotted Sandpiper ____ Merlin ____ Purple Finch NUTHATCHES ____ Wood Duck ____ Solitary Sandpiper ____ Peregrine Falcon ____ Red-breasted Nuthatch ____ Cassin’s Finch ____ Blue-winged Teal ____ Greater Yellowlegs ____ Prairie Falcon ____ White-breasted Nuthatch ____ Common Redpoll ____ Cinnamon Teal ____ Red Crossbill CORMORANTS FLYCATCHERS ____ Pygmy Nuthatch ____ Northern Shoveler ____ Double-crested Cormorant ____ Western Kingbird ____ Pine Siskin CREEPERS ____ Gadwall ____ Eastern Kingbird ____ American Goldfinch ____ American Wigeon PELICANS, HERONS, IBIS ____ Brown Creeper ____ Great Blue Heron ____ Olive-sided Flycatcher SPARROWS ____ Mallard ____ Western Wood-Pewee WRENS ____ Chipping Sparrow ____ Green-winged Teal VULTURES, RAPTORS ____ Willow Flycatcher ____ Rock Wren ____ Fox Sparrow ____ Ring-necked Duck ____ Turkey Vulture ____ Least Flycatcher ____ Canyon Wren ____ American Tree Sparrow ____ Harlequin Duck ____ Osprey ____ Hammond’s Flycatcher ____ House Wren ____ Dark-eyed Junco ____ Bufflehead ____ Golden Eagle ____ Gray Flycatcher ____ Pacific Wren ____ White-crowned Sparrow ____ Common Goldeneye ____ Northern Harrier ____ Dusky Flycatcher ____ Marsh Wren ____ Golden-crowned Sparrow ____ Barrow's Goldeneye ____ Sharp-shinned Hawk ____ Pacific-slope Flycatcher ____ Bewick’s Wren ____ White-throated Sparrow ____ Hooded Merganser ____ Cooper’s -
Ruffed Grouse Habitat Use in Western North Carolina
University of Tennessee, Knoxville TRACE: Tennessee Research and Creative Exchange Masters Theses Graduate School 5-2002 Ruffed Grouse Habitat Use in Western North Carolina Carrie L. Schumacher University of Tennessee - Knoxville Follow this and additional works at: https://trace.tennessee.edu/utk_gradthes Part of the Life Sciences Commons Recommended Citation Schumacher, Carrie L., "Ruffed Grouse Habitat Use in Western North Carolina. " Master's Thesis, University of Tennessee, 2002. https://trace.tennessee.edu/utk_gradthes/2192 This Thesis is brought to you for free and open access by the Graduate School at TRACE: Tennessee Research and Creative Exchange. It has been accepted for inclusion in Masters Theses by an authorized administrator of TRACE: Tennessee Research and Creative Exchange. For more information, please contact [email protected]. To the Graduate Council: I am submitting herewith a thesis written by Carrie L. Schumacher entitled "Ruffed Grouse Habitat Use in Western North Carolina." I have examined the final electronic copy of this thesis for form and content and recommend that it be accepted in partial fulfillment of the requirements for the degree of Master of Science, with a major in Wildlife and Fisheries Science. Craig A. Harper, Major Professor We have read this thesis and recommend its acceptance: David A. Buehler, Arnold Saxton Accepted for the Council: Carolyn R. Hodges Vice Provost and Dean of the Graduate School (Original signatures are on file with official studentecor r ds.) To the Graduate Council: I am submitting herewith a thesis written by Carrie L. Schumacher entitled “Ruffed Grouse Habitat Use in Western North Carolina.” I have examined the final electronic copy of this thesis for form and content and recommend that it be accepted in partial fulfillment of the requirements for the degree of Master of Science, with a major in Wildlife and Fisheries Science. -
Haldane's Rule and American Black Duck × Mallard Hybridization
1827 NOTE / NOTE Haldane’s rule and American black duck × mallard hybridization Ronald E. Kirby, Glen A. Sargeant, and Dave Shutler Abstract: Species ratios and rangewide distributions of American black ducks (Anas rubripes Brewster, 1902) and mal- lards (Anas platyrhynchos L., 1758) have undergone recent changes. Mechanisms behind these changes are not known with certainty, but recent investigations have focused on the possibility of competitive exclusion and the consequences of hybridization. Consequences of hybridization have been difficult to assess because of the difficulty in identifying hy- brids beyond the F1 generation and lack of means to quantify introgression in wild populations. We documented a postmating isolating mechanism between the two species that follows Haldane’s rule in controlled, interspecific matings in captive populations. Hybridization reduces the proportion of F1 females available to return to the breeding grounds in the subsequent year. This effect, although likely small in overall population consequences in any year, may be of lo- cal significance and may contribute to recent reports of range shifts in both American black ducks and mallards. Résumé : L’importance relative des canards noirs (Anas rubripes Brewster, 1902) et des canards colverts (Anas platyr- hynchos L., 1758) et leur répartitiol’échelle de leur aire totale ont encouru des modifications récentes. Les mécanismes responsables de ces changements ne sont pas connus avec précision, mais des études récentes ont examiné l’exclusion par compétition et les conséquences de l’hybridation. Les conséquences de l’hybridation sont difficiles à évaluer car il n’est pas facile d’identifier les hybrides au-delà de la génération F1 et il n’y a pas de moyen pour quantifier l’introgression chez les populations sauvages. -
Symposium on the Gray Squirrel
SYMPOSIUM ON THE GRAY SQUIRREL INTRODUCTION This symposium is an innovation in the regional meetings of professional game and fish personnel. When I was asked to serve as chairman of the Technical Game Sessions of the 13th Annual Conference of the Southeastern Association of Game and Fish Commissioners this seemed to be an excellent opportunity to collect most of the people who have done some research on the gray squirrel to exchange information and ideas and to summarize some of this work for the benefit of game managers and other biologists. Many of these people were not from the southeast and surprisingly not one of the panel mem bers is presenting a general resume of one aspect of squirrel biology with which he is most familiar. The gray squirrel is also important in Great Britain but because it causes extensive damage to forests. Much work has been done over there by Monica Shorten (Mrs. Vizoso) and a symposium on the gray squirrel would not be complete without her presence. A grant from the National Science Foundation through the American Institute of Biological Sciences made it possible to bring Mrs. Vizoso here. It is hoped that this symposium will set a precedent for other symposia at future wildlife conferences. VAGN FLYGER. THE RELATIONSHIPS OF THE GRAY SQUIRREL, SCIURUS CAROLINENSIS, TO ITS NEAREST RELATIVES By DR. ]. C. MOORE INTRODUCTION It seems at least slightly more probable at this point in our knowledge of the living Sciuridae, that the northeastern American gray squirrel's oldest known ancestors came from the Old \Vorld rather than evolved in the New. -
Wild Turkey Education Guide
Table of Contents Section 1: Eastern Wild Turkey Ecology 1. Eastern Wild Turkey Quick Facts………………………………………………...pg 2 2. Eastern Wild Turkey Fact Sheet………………………………………………….pg 4 3. Wild Turkey Lifecycle……………………………………………………………..pg 8 4. Eastern Wild Turkey Adaptations ………………………………………………pg 9 Section 2: Eastern Wild Turkey Management 1. Wild Turkey Management Timeline…………………….……………………….pg 18 2. History of Wild Turkey Management …………………...…..…………………..pg 19 3. Modern Wild Turkey Management in Maryland………...……………………..pg 22 4. Managing Wild Turkeys Today ……………………………………………….....pg 25 Section 3: Activity Lesson Plans 1. Activity: Growing Up WILD: Tasty Turkeys (Grades K-2)……………..….…..pg 33 2. Activity: Calling All Turkeys (Grades K-5)………………………………..…….pg 37 3. Activity: Fit for a Turkey (Grades 3-5)…………………………………………...pg 40 4. Activity: Project WILD adaptation: Too Many Turkeys (Grades K-5)…..…….pg 43 5. Activity: Project WILD: Quick, Frozen Critters (Grades 5-8).……………….…pg 47 6. Activity: Project WILD: Turkey Trouble (Grades 9-12………………….……....pg 51 7. Activity: Project WILD: Let’s Talk Turkey (Grades 9-12)..……………..………pg 58 Section 4: Additional Activities: 1. Wild Turkey Ecology Word Find………………………………………….…….pg 66 2. Wild Turkey Management Word Find………………………………………….pg 68 3. Turkey Coloring Sheet ..………………………………………………………….pg 70 4. Turkey Coloring Sheet ..………………………………………………………….pg 71 5. Turkey Color-by-Letter……………………………………..…………………….pg 72 6. Five Little Turkeys Song Sheet……. ………………………………………….…pg 73 7. Thankful Turkey…………………..…………………………………………….....pg 74 8. Graph-a-Turkey………………………………….…………………………….…..pg 75 9. Turkey Trouble Maze…………………………………………………………..….pg 76 10. What Animals Made These Tracks………………………………………….……pg 78 11. Drinking Straw Turkey Call Craft……………………………………….….……pg 80 Section 5: Wild Turkey PowerPoint Slide Notes The facilities and services of the Maryland Department of Natural Resources are available to all without regard to race, color, religion, sex, sexual orientation, age, national origin or physical or mental disability. -
October–December 2014 Vermilion Flycatcher Tucson Audubon 3 the Sky Island Habitat
THE QUARTERLY NEWS MAGAZINE OF TUCSON AUDUBON SOCIETY | TUCSONAUDUBON.ORG VermFLYCATCHERilion October–December 2014 | Volume 59, Number 4 Adaptation Stormy Weather ● Urban Oases ● Cactus Ferruginous Pygmy-Owl What’s in a Name: Crissal Thrasher ● What Do Owls Need for Habitat ● Tucson Meet Your Birds Features THE QUARTERLY NEWS MAGAZINE OF TUCSON AUDUBON SOCIETY | TUCSONAUDUBON.ORG 12 What’s in a Name: Crissal Thrasher 13 What Do Owls Need for Habitat? VermFLYCATCHERilion 14 Stormy Weather October–December 2014 | Volume 59, Number 4 16 Urban Oases: Battleground for the Tucson Audubon Society is dedicated to improving the Birds quality of the environment by providing environmental 18 The Cactus Ferruginous Pygmy- leadership, information, and programs for education, conservation, and recreation. Tucson Audubon is Owl—A Prime Candidate for Climate a non-profit volunteer organization of people with a Adaptation common interest in birding and natural history. Tucson 19 Tucson Meet Your Birds Audubon maintains offices, a library, nature centers, and nature shops, the proceeds of which benefit all of its programs. Departments Tucson Audubon Society 4 Events and Classes 300 E. University Blvd. #120, Tucson, AZ 85705 629-0510 (voice) or 623-3476 (fax) 5 Events Calendar Adaptation All phone numbers are area code 520 unless otherwise stated. 6 Living with Nature Lecture Series Stormy Weather ● Urban Oases ● Cactus Ferruginous Pygmy-Owl tucsonaudubon.org What’s in a Name: Crissal Thrasher ● What Do Owls Need for Habitat ● Tucson Meet Your Birds 7 News Roundup Board Officers & Directors President—Cynthia Pruett Secretary—Ruth Russell 20 Conservation and Education News FRONT COVER: Western Screech-Owl by Vice President—Bob Hernbrode Treasurer—Richard Carlson 24 Birding Travel from Our Business Partners Guy Schmickle. -
2015 Disease Summary
SUMMARY OF DISEASES AFFECTING MICHIGAN WILDLIFE 2015 ABSCESS Abdominal Eastern Fox Squirrel, Trumpeter Swan, Wild Turkey Airsac Canada Goose Articular White-tailed Deer Cranial White-tailed Deer Dermal White-tailed Deer Hepatic White-tailed Deer, Red-tailed Hawk, Wild Turkey Intramuscular White-tailed Deer Muscular Moose, White-tailed Deer, Wild Turkey Ocular White-tailed Deer Pulmonary Granulomatous Focal White-tailed Deer Unspecified White-tailed Deer, Raccoon, Canada Goose Skeletal Mourning Dove Subcutaneous White-tailed Deer, Raccoon, Eastern Fox Squirrel, Mute Swan Thoracic White-tailed Deer Unspecified White-tailed Deer ADHESION Pleural White-tailed Deer 1 AIRSACCULITIS Egg Yolk Canada Goose Fibrinous Chronic Bald Eagle, Red-tailed Hawk, Canada Goose, Mallard, Wild Turkey Mycotic Trumpeter Swan, Canada Goose Necrotic Caseous Chronic Bald Eagle Unspecified Chronic Bald Eagle, Peregrine Falcon, Mute Swan, Redhead, Wild Turkey, Mallard, Mourning Dove Unspecified Snowy Owl, Common Raven, Rock Dove Unspecified Snowy Owl, Merlin, Wild Turkey, American Crow Urate Red-tailed Hawk ANOMALY Congenital White-tailed Deer ARTHROSIS Inflammatory Cooper's Hawk ASCITES Hemorrhagic White-tailed Deer, Red Fox, Beaver ASPERGILLOSIS Airsac American Robin Cranial American Robin Pulmonary Trumpeter Swan, Blue Jay 2 ASPERGILLOSIS (CONTINUED ) Splenic American Robin Unspecified Red-tailed Hawk, Snowy Owl, Trumpeter Swan, Canada Goose, Common Loon, Ring- billed Gull, American Crow, Blue Jay, European Starling BLINDNESS White-tailed Deer BOTULISM Type C Mallard